diff options
37 files changed, 42 insertions, 137 deletions
diff --git a/Documentation/i2c/porting-clients b/Documentation/i2c/porting-clients index 105c6186b912..68bcd66e36b1 100644 --- a/Documentation/i2c/porting-clients +++ b/Documentation/i2c/porting-clients @@ -94,7 +94,8 @@ Technical changes: limited to the strictly necessary steps. * [Detach] Get rid of data, remove the call to - i2c_deregister_entry. + i2c_deregister_entry. Do not log an error message if + i2c_detach_client fails, as i2c-core will now do it for you. * [Update] Don't access client->data directly, use i2c_get_clientdata(client) instead. diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients index 522ae01d2e7f..7e2a8f11c220 100644 --- a/Documentation/i2c/writing-clients +++ b/Documentation/i2c/writing-clients @@ -489,10 +489,8 @@ much simpler than the attachment code, fortunately! /* SENSORS ONLY END */ /* Try to detach the client from i2c space */ - if ((err = i2c_detach_client(client))) { - printk("foo.o: Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } /* HYBRID SENSORS CHIP ONLY START */ if i2c_is_isa_client(client) diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c index 2a341390d92e..da3e2c9f705f 100644 --- a/drivers/hwmon/adm1021.c +++ b/drivers/hwmon/adm1021.c @@ -328,10 +328,8 @@ static int adm1021_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c index bdba01e2f3ed..181dadf42002 100644 --- a/drivers/hwmon/adm1025.c +++ b/drivers/hwmon/adm1025.c @@ -517,11 +517,8 @@ static int adm1025_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index d52100027665..82edf286ebdc 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -645,11 +645,8 @@ static int adm9240_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c index 290f7d2ac0a8..c6a2c94fad36 100644 --- a/drivers/hwmon/asb100.c +++ b/drivers/hwmon/asb100.c @@ -867,11 +867,8 @@ static int asb100_detach_client(struct i2c_client *client) if (data) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "client deregistration failed; " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } /* main client */ if (data) diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c index 4a316a7f7980..3ac37e95d2ef 100644 --- a/drivers/hwmon/ds1621.c +++ b/drivers/hwmon/ds1621.c @@ -282,11 +282,8 @@ static int ds1621_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); diff --git a/drivers/hwmon/fscher.c b/drivers/hwmon/fscher.c index c7caa95c643b..ddf22fbf4ed1 100644 --- a/drivers/hwmon/fscher.c +++ b/drivers/hwmon/fscher.c @@ -383,11 +383,8 @@ static int fscher_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/fscpos.c b/drivers/hwmon/fscpos.c index fd75e444e758..489870ad6056 100644 --- a/drivers/hwmon/fscpos.c +++ b/drivers/hwmon/fscpos.c @@ -549,11 +549,8 @@ static int fscpos_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, client" - " not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; } diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c index 34d85b1e5539..63a2756c283a 100644 --- a/drivers/hwmon/gl518sm.c +++ b/drivers/hwmon/gl518sm.c @@ -492,11 +492,8 @@ static int gl518_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c index b129d153deab..ff71eb7ac681 100644 --- a/drivers/hwmon/gl520sm.c +++ b/drivers/hwmon/gl520sm.c @@ -654,11 +654,8 @@ static int gl520_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 0a8d795f15c2..b1719f4097ef 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -945,11 +945,8 @@ static int it87_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } if(i2c_is_isa_client(client)) release_region(client->addr, IT87_EXTENT); diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index e19b11fd4816..736126d73aa2 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -520,11 +520,8 @@ static int lm63_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index 784935f77016..21b767a66bbd 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -683,11 +683,8 @@ static int lm78_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } if(i2c_is_isa_client(client)) release_region(client->addr, LM78_EXTENT); diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c index fa2cb17018cc..36a0cda36a7d 100644 --- a/drivers/hwmon/lm80.c +++ b/drivers/hwmon/lm80.c @@ -510,11 +510,8 @@ static int lm80_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c index 0223b4d2ce1d..f3557f8826a9 100644 --- a/drivers/hwmon/lm83.c +++ b/drivers/hwmon/lm83.c @@ -363,11 +363,8 @@ static int lm83_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index 1dc3bf52b40d..f0ffe58e3670 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c @@ -734,11 +734,8 @@ static int lm87_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 4b914ec205fa..fbf9dac41ee5 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -562,11 +562,8 @@ static int lm90_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c index 9c43120d6bd7..9740ee264051 100644 --- a/drivers/hwmon/lm92.c +++ b/drivers/hwmon/lm92.c @@ -399,11 +399,8 @@ static int lm92_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c index 5f0376575c62..a53d7df92ba2 100644 --- a/drivers/hwmon/max1619.c +++ b/drivers/hwmon/max1619.c @@ -322,11 +322,8 @@ static int max1619_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c index 4041488de6f1..1f1b3ca23f6f 100644 --- a/drivers/hwmon/pc87360.c +++ b/drivers/hwmon/pc87360.c @@ -984,11 +984,8 @@ static int pc87360_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((i = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((i = i2c_detach_client(client))) return i; - } for (i = 0; i < 3; i++) { if (data->address[i]) { diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index 67246299a308..55716cb579aa 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -618,11 +618,8 @@ static int sis5595_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } release_region(client->addr, SIS5595_EXTENT); diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c index dddc94a7649b..7fe71576dea4 100644 --- a/drivers/hwmon/smsc47b397.c +++ b/drivers/hwmon/smsc47b397.c @@ -214,11 +214,8 @@ static int smsc47b397_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } release_region(client->addr, SMSC_EXTENT); kfree(data); diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 8126fdd7cbee..9da5d546e861 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -497,11 +497,8 @@ static int smsc47m1_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } release_region(client->addr, SMSC_EXTENT); kfree(data); diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c index cd3732c36671..d9251fb0b625 100644 --- a/drivers/hwmon/via686a.c +++ b/drivers/hwmon/via686a.c @@ -700,11 +700,8 @@ static int via686a_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } release_region(client->addr, VIA686A_EXTENT); kfree(data); diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index b14801cd615d..b60efe8f8b26 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -774,11 +774,8 @@ static int w83627ehf_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } release_region(client->addr, REGION_LENGTH); kfree(data); diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 9e31f5559ccc..f1ae0e00691b 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -1157,11 +1157,8 @@ static int w83627hf_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } release_region(client->addr, WINB_EXTENT); kfree(data); diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index 70718559de75..66835c1e3f68 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -1299,11 +1299,8 @@ w83781d_detach_client(struct i2c_client *client) if (i2c_is_isa_client(client)) release_region(client->addr, W83781D_EXTENT); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } /* main client */ if (data) diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c index 05f9b92ad3e7..ea0c3519e03a 100644 --- a/drivers/hwmon/w83792d.c +++ b/drivers/hwmon/w83792d.c @@ -1396,11 +1396,8 @@ w83792d_detach_client(struct i2c_client *client) if (data) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } /* main client */ if (data) diff --git a/drivers/hwmon/w83l785ts.c b/drivers/hwmon/w83l785ts.c index 9cd1939cd040..213fb170d397 100644 --- a/drivers/hwmon/w83l785ts.c +++ b/drivers/hwmon/w83l785ts.c @@ -267,11 +267,8 @@ static int w83l785ts_detach_client(struct i2c_client *client) hwmon_device_unregister(data->class_dev); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(data); return 0; diff --git a/drivers/i2c/chips/ds1337.c b/drivers/i2c/chips/ds1337.c index 6ac0a6e00769..8ab4e2348cda 100644 --- a/drivers/i2c/chips/ds1337.c +++ b/drivers/i2c/chips/ds1337.c @@ -353,11 +353,8 @@ static int ds1337_detach_client(struct i2c_client *client) int err; struct ds1337_data *data = i2c_get_clientdata(client); - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed, " - "client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } list_del(&data->list); kfree(data); diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c index 88f83bac3845..9466ada68932 100644 --- a/drivers/i2c/chips/eeprom.c +++ b/drivers/i2c/chips/eeprom.c @@ -230,10 +230,8 @@ static int eeprom_detach_client(struct i2c_client *client) int err; err = i2c_detach_client(client); - if (err) { - dev_err(&client->dev, "Client deregistration failed, client not detached.\n"); + if (err) return err; - } kfree(i2c_get_clientdata(client)); diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c index d1d48586b90e..52fd6bf29133 100644 --- a/drivers/i2c/chips/max6875.c +++ b/drivers/i2c/chips/max6875.c @@ -242,10 +242,8 @@ static int max6875_detach_client(struct i2c_client *client) int err; err = i2c_detach_client(client); - if (err) { - dev_err(&client->dev, "i2c_detach_client() failed\n"); + if (err) return err; - } kfree(i2c_get_clientdata(client)); return 0; } diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c index c5b052363d9a..1500b1842ce5 100644 --- a/drivers/i2c/chips/pca9539.c +++ b/drivers/i2c/chips/pca9539.c @@ -163,10 +163,8 @@ static int pca9539_detach_client(struct i2c_client *client) { int err; - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, "Client deregistration failed.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(i2c_get_clientdata(client)); return 0; diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c index 7a1fa7914630..a109dfd3dbe7 100644 --- a/drivers/i2c/chips/pcf8574.c +++ b/drivers/i2c/chips/pcf8574.c @@ -185,11 +185,8 @@ static int pcf8574_detach_client(struct i2c_client *client) { int err; - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(i2c_get_clientdata(client)); return 0; diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c index 225b512dd4ad..7fce0fc048d9 100644 --- a/drivers/i2c/chips/pcf8591.c +++ b/drivers/i2c/chips/pcf8591.c @@ -240,11 +240,8 @@ static int pcf8591_detach_client(struct i2c_client *client) { int err; - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Client deregistration failed, client not detached.\n"); + if ((err = i2c_detach_client(client))) return err; - } kfree(i2c_get_clientdata(client)); return 0; diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 7a7837ae3114..b0bceb2fb8b1 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -449,8 +449,12 @@ int i2c_detach_client(struct i2c_client *client) struct i2c_adapter *adapter = client->adapter; int res = 0; - if ((client->flags & I2C_CLIENT_ALLOW_USE) && (client->usage_count > 0)) + if ((client->flags & I2C_CLIENT_ALLOW_USE) + && (client->usage_count > 0)) { + dev_warn(&client->dev, "Client [%s] still busy, " + "can't detach\n", client->name); return -EBUSY; + } if (adapter->client_unregister) { res = adapter->client_unregister(client); |